公开(公告)号：US20230070451A1

公开(公告)日：2023-03-09

申请号：US17901229

申请日：2022-09-01

Applicant: Techtronic Cordless GP

Inventor： Wade King

IPC: B27B17/12 ,  F16N13/06

Abstract: Systems and methods which provide control of lubricant delivery with respect to chainsaws using a lubricant flow shutoff valve controlled in correspondence to an operational state of the chainsaw are described. A chainsaw lubricant delivery control system may include a lubricant flow shutoff valve and a chainsaw operation-based valve controller operable cooperatively to provide control of lubricant delivery to the cutting chain and guide bar assembly of a chainsaw. The chainsaw operation-based valve controller may be coupled to an operationally active element of the chainsaw wherein the chainsaw operation-based valve controller may control the lubricant flow shutoff valve between an open position and a closed position responsive to detecting a particular state of the operationally active element corresponding to an operational state of the chainsaw. Chainsaw lubricant delivery may prevent or otherwise discourage unintended leakage of lubricant from the chainsaw lubrication system.